Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread Dave Sergeant
For your information, G3NKC who started this thread, has now unsubscribed from the reflector. If only people would use these properly in their subject lines the filtering would do the job. Unfortunately they don't. We have for instance KX3, KX-3, KX 3 - and I see today we even have CK722 and C

Re: [Elecraft] CK-722

2011-05-26 Thread Phil Hystad
Wow. I have not even thought about the CK722 for many decades. It brings back many memories of my childhood fascination with electronics and those little projects you would read about in various magazines of the day. I think it was the CK722 that introduced me to the fact that transistors cam

Re: [Elecraft] CK722 transistor

2011-05-26 Thread Alan Bloom
John Adams-2 wrote: > > I peeled the blue metal cover off and some gooey stuff, and there was a > smaller, silver metal cased transistor inside. I think the gooey stuff was heat sink compound. Before the planar process was invented for making transistors and ICs, the junctions were formed by d

[Elecraft] CK-722

2011-05-26 Thread SABorns
I purchased my first CK-722 in the mid 50's when the price dropped from about $15.50 to $7.50. Shortly afterward the price dropped again to $4.50. I used it in the audio stage of a BC band receiver. Exciting stuff in those days. Steve K8IDN Steven Bornstein K8IDN 475 E. North Broadway Co

Re: [Elecraft] K2 Current Draw vs. Options

2011-05-26 Thread John Meade
John The lowest I can get the current down to is 200 mA. That's in battery saver mode (LED graph = off, performance = battery, and LCD backlights = day (off). If I start to turn those options on, I get: LCD = nite = 240 mA Opt = Perf = 300 mA LED = Bar = 320 mA My options are: KAF2 Filter KAT

[Elecraft] KX3 roofing filters

2011-05-26 Thread Mike Morrow
> I am wondering what kind of filter it is as it certainly can't be a xtal > filter at this vy low frequency has to be some kind of software > controlled filter. I think that I heard Wayne say at the Elecraft display in Dayton that they were mechanical filters. Mike / KK5F __

[Elecraft] CK722 transistor

2011-05-26 Thread Ralph Parker
Sometime back in the '50s, I built an RF powered CW monitor called "Snortin' Morten" with a CK722. I remember sticking a wire into the PA cage (DX-35? Viking II?) to sample the RF. Not the smoothest note in the world. I think I built it from a schematic in CQ (editor was Wayne Green), but can't fin

Re: [Elecraft] KPA500

2011-05-26 Thread Robert Friess
The KPA500 uses a push-pull pair of VRF2933s manufactured by Microsemi Corp. 73, Bob, N6CM On Thu, May 26, 2011 at 7:08 PM, R. Kevin Stover wrote: > Hello all. > > Just wondering what the KPA500 uses for finals. > I have both manuals but don't see it mentioned in either one, and don't > see a s

Re: [Elecraft] kx3 roofing filter

2011-05-26 Thread Ross Primrose N4RP
On 5/26/11 6:38 PM, Don Wilhelm wrote: > The K3 uses crystal filters at the 8 MHz 1st IF, the KX3 roofing filters > work at the 2nd IF, but should still be quite effective. Actually, at least as I understand it, the KX3 is direct conversion, to the KX3 roofing filter option is at the first "IF" a

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread w0ih
My question is, do you have a 12 volt battery in the circuit with the charger. Probably not, if the voltage is running at over 15 volts. Chargers are made to run with a battery connected, which would drop the voltage to about 14.4 volts while charging, no higher. Mike -- View this message in co

[Elecraft] K2 Current Draw vs. Options

2011-05-26 Thread John
Hello, I hope to learn the typical current consumption of the K2/QRP with and without various options installed. I understand the K2 has a built in radio current drain and voltage monitor. If you have a K2 and a moment, could you please jot down the reported voltage applied and current consu

[Elecraft] KPA500

2011-05-26 Thread R. Kevin Stover
Hello all. Just wondering what the KPA500 uses for finals. I have both manuals but don't see it mentioned in either one, and don't see a schematic to download. Thanks. -- R. Kevin Stover AC0H __ Elecraft mailing list Home: http://mailm

Re: [Elecraft] K3 Power calibration failure

2011-05-26 Thread Don Wilhelm
Brian, I am relpying out of "stupidity". The K3 Utility tries to set the ATU to bypass. If it detects the KAT3, but it does not go into bypass, that would terminate the procedure. I suggest that he look at the KAT3 situation first. Once that is resolved, then other factors will either fal

[Elecraft] FW: Question about setting AGC

2011-05-26 Thread Ian Kahn
Tech Mode on, AGC slope and threshold now available. Thanks for the replies, all! 73, Ian Kahn, AK4IK Roswell, GA K3 #281 P3 #688 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://m

Re: [Elecraft] [K2] Replacing tuning knob with one from Ten-Tec

2011-05-26 Thread Paul Saville
I have a heavy-ish 73crc knob on my K2, and I prefer the feel with the felt washer completely removed. It doesn't drift when bumped although it could be that I have an especially stiff encoder. The finger dimple is too small for my stubby finger, so I stuck an Elecraft-supplied finger dimple over t

Re: [Elecraft] KX3 Web Page and Data Sheet now up

2011-05-26 Thread R. Kevin Stover
You are right of course. Although, in a certain sense the feeding frenzy is entertaining. Some of the "design changes" I've seen posted by the armchair engineers since last Thursday just made me sit back a say...WHAT!?!?!? There are three prototypes on the planet and Elecraft are supposed to

Re: [Elecraft] Question about setting AGC

2011-05-26 Thread W6NEK
Hello Ian, Set Config Menu "TECH MD" to ON. The various AGC menu setting will then be available. 73, Frank - W6NEK - Original Message - From: "Ian Kahn" To: Sent: Thursday, May 26, 2011 6:25 PM Subject: [Elecraft] Question about setting AGC >I purchased K3 #281 about two months ago,

[Elecraft] Question about setting AGC

2011-05-26 Thread Ian Kahn
I purchased K3 #281 about two months ago, and immediately upgraded it to the latest firmware. During that time, I read W3FPR's outstanding web page on setting AGC. I attempted last night to follow his steps to adjust the AGC on my rig for 40m. Unfortunately, I have neither AGC slope nor threshol

Re: [Elecraft] KX3 Web Page and Data Sheet now up

2011-05-26 Thread Fred Jensen
What ever happened to "patience" in our society? For pete's sake, they're working on it, folks! It's hard, I've been there, Design Engineers come up with some great stuff, Manufacturing Engineers work to build it, Engineers, Marketing, and Accountants try hard to figure out what will make mon

Re: [Elecraft] KX3 Web Page and Data Sheet now up

2011-05-26 Thread Tony Estep
On Thu, May 26, 2011 at 7:49 PM, Jim Lowman wrote: > Any preliminary receiver specs? Even anecdotal information, such as > "better than the K2 but not as good as the K3" would be great. > > > Early in the game, Wayne mentioned (IIRC) that the receiver would be "about as good as a Flex-3000" or

Re: [Elecraft] KX3 Web Page and Data Sheet now up

2011-05-26 Thread Don Wilhelm
Jim, I believe that is a pre-mature question. There are only 3 prototype KX3s in the world today. That information will come later. Yes, I believe that it will be better than the K2, but not quite as good as the K3, but that all depends on which parameters you will be looking at - it has m

Re: [Elecraft] KX3 Web Page and Data Sheet now up

2011-05-26 Thread Jim Lowman
Any preliminary receiver specs? Even anecdotal information, such as "better than the K2 but not as good as the K3" would be great. 72/73 de Jim - AD6CW On 5/26/2011 12:12 PM, Eric Swartz - WA6HHQ, Elecraft wrote: > See: > http://www.elecraft.com/KX3/kx3.htm > > 73, Eric WA6HHQ > __

Re: [Elecraft] KX3 roofing filters

2011-05-26 Thread Jim Dunstan
At 03:30 PM 5/26/2011 -0700, you wrote: >Jim Dunstan-2 wrote: > > > > My interpretation is that the "narrow roofing filter option" is variable > > with 500, 1500, 2700, and 3800 hz steps that follow the DSP filter as it's > > bandwidth is changed. > > > >These filters are ahead of the DSP at baseb

Re: [Elecraft] CK722 transistor

2011-05-26 Thread Fred Jensen
9 years old, eh? Apparently savvy engineers show their talents early :-) My grandmother bought one for me when I was 13, $10 or so I think, I built a crystal radio using it as the audio amp, and she was so impressed. Grandma always told me I was a genius. Mom, Dad, and Life ... not so much.

[Elecraft] K3 Power calibration failure

2011-05-26 Thread Brian Alsop
I'm posting this for KK4AOA. He will be joining the group later. He is doing a clean build. The K3 is a K3-10 so far with an internal antenna tuner and five filters. No subrx. Running the utility program transmit power calibration works fine on 160,80 and 60M but fails on 40M. Over the phone

Re: [Elecraft] OT -RFI question

2011-05-26 Thread Ed, W9EJB
The major problem with the digital modes (amplitude pulse modes) occured during the initial protocol between the cell & phone. This is a max power mode and occurs prior to phone ringing. The peak powers were as high as 10 watts. Also, during power save modes of TDMA, the packet rate can be as l

Re: [Elecraft] [K2] Replacing tuning knob with one from Ten-Tec

2011-05-26 Thread Don Wilhelm
Jim, I cannot say for certain because I have not seen the knob. I do have a concern for knobs that are heavy and do not fit properly against the felt washer. For one thing, the heavier knob spaced out from the front panel will put extra downward stress on the encoder shaft - that is canceled o

Re: [Elecraft] CK722 transistor

2011-05-26 Thread Bob
They got my first order correct. I'm taxing old dormant gray matter. But what was their first sales? If I have it all correct the founders started out selling a PCB and parts kit for a design of a keyer that was in QST, called Digikey. It used Motorola MC 700 series RTL logic on an about 1.5 i

[Elecraft] [K2] Replacing tuning knob with one from Ten-Tec

2011-05-26 Thread Jim Lowman
I've searched through the archives provided by Leigh, and found that various replacement tuning knobs for the K2 work well. Among others, the FT-100. I have a heavier-duty metal knob that I bought from Ten-Tec as a replacement for the knob on the Argonaut V, but traded that radio in to Ten-Tec

Re: [Elecraft] CK722 transistor

2011-05-26 Thread Joseph Malloy
Gee, I think it was just before I was licensed (in 1964) that I ordered my very first KC722 -- from PolyPaks in Lynn, MA, if I recall. It arrived with one lead missing, so I wrote (you couldn't afford to call back then, at least at the age of 16) and received another, in good shape. Then, a few y

Re: [Elecraft] kx3 roofing filter

2011-05-26 Thread Don Wilhelm
Larry, It is not for the K3, it will only work in the KX3. From what I can imagine (and it is only MY imagination), it is more akin to an active bandpass filter (like an audio filter, but at the high end of the audio range) where it filters the 11 kHz IF before the signal hits the ADC conver

Re: [Elecraft] N2CQ QRP Contest Calendar: May 28 - June 27, 2011

2011-05-26 Thread John Cooper
Don’t forget MSWE on June 4 and 5. I will have a K2 on the USS Cavalla. -Original Message- From: Ken Newman Sent: Thursday, May 26, 2011 8:15 AM To: List Elecraft Subject: [Elecraft] N2CQ QRP Contest Calendar: May 28 - June 27, 2011 ~~

[Elecraft] Shipping costs

2011-05-26 Thread Max Kempson
I have queried this in the past for small items. An email to Lisa quickly resolved the issue. Max/ZL4VV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:El

Re: [Elecraft] CK722 transistor

2011-05-26 Thread Leigh L. Klotz Jr WA5ZNU
John Adams-2 wrote: > > I peeled the blue metal cover off and some gooey stuff, and there was a > smaller, silver metal > cased transistor inside. > Photos? Here you go: http://ck722museum.com/page6.html The site has internal broken links, but if you look at the URL and replace the geocities

Re: [Elecraft] KX3 roofing filters

2011-05-26 Thread Bill W4ZV
Jim Dunstan-2 wrote: > > My interpretation is that the "narrow roofing filter option" is variable > with 500, 1500, 2700, and 3800 hz steps that follow the DSP filter as it's > bandwidth is changed. > These filters are ahead of the DSP at baseband. They protect the ADC from overload and shou

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread Phil Kane
On 5/26/2011 1:43 PM, John Huggins, kx4o wrote: > However, I would not make a habit of it and heed others' advice about > staying within the 15V limit with a good DC power supply or charge with > the radio disconnected. It should have less electrical noise as a side > benefit. Or use a smart-c

[Elecraft] kx3 roofing filter

2011-05-26 Thread Larry Walker
Is this "one size does all" roofing filter the one alluded to at the beginning of the K3 campaign that would be available at some point down the line? Will it fit the K3 or just KX3? Larry kw4a __ Elecraft mailing list Home: http://mai

Re: [Elecraft] CK722 transistor

2011-05-26 Thread Wayne Burdick
I obtained a CK722 when I was about 9 years old. It was the first electronic part I ordered. The only place I could think of to get one was Heathkit, and somehow I managed to talk them into sending me one as a replacement part. It was a few years later that I ordered my second part: a disc

Re: [Elecraft] KX3 roofing filters

2011-05-26 Thread Jim Dunstan
At 04:37 PM 5/26/2011 -0400, you wrote: >Ah. Extremely important point. NOT at all apparent from the KX3 >page, especially when used to the one filter, one bandwidth paradigm. >As it stands it reads like four available, but only one installable. > >On the web page, you may want to change... > >"N

Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread n5ge
I used to set kill filters for the topics I wasn't interested in, but found that at some times I would delete something that interested me, so using my Email program 'Agent' I now use the watch filter to look for phrases in the subject that contain topics I'm not interested in and move them to a f

[Elecraft] CK722 transistor

2011-05-26 Thread John Adams
I once broke a leg off my ck722, I was a teenager and couldn't afford to buy another one, so I peeled the blue metal cover off and some gooey stuff, and there was a smaller, silver metal cased transistor inside. It's leads were long enough and I used that. I really enjoy my K3. John. ___

Re: [Elecraft] KPA500 brick-on-key (CCS) ratings?

2011-05-26 Thread n5ge
Ouch! I hope you got your money back 73, Tom Amateur Radio Operator N5GE On Thu, 26 May 2011 14:22:16 -0500, "John Harper" wrote: >>This is a continuing game played with tuners, which for a long time >>have given ratings for stand-alone tuners based upon average voice AND > > > > >Some t

Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread Leigh L. Klotz Jr WA5ZNU
I created the various web archives for the Elecraft list (except for the qth.net/qsl.net ones). In my opinion, the Nabble site is the best one for for reading, for searching, and for writing as well. All traffic is synchronized with the mailing list, so you get the best of both worlds. It's here:

[Elecraft] Crikey! Please edit replies down to a minimum size and delete extra footers

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
When replying to emails on the list, please remember to edit down the copied text to the minimum needed to retain context. One or two sentences from the original post are usually sufficient. This keeps the list and archive volume down and makes everything much more readable. *** Don't forget to

[Elecraft] Lost your list Password? - Here's how to get it.

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
If you have misplaced your elecraft list password, or if you never received it, here is how to get it sent to you again. Go to: http://mailman.qth.net/mailman/listinfo/elecraft and scroll to the bottom of the page. Enter your email address (the one you used for the list) and click on 'Edit Opti

Re: [Elecraft] K3 text decode

2011-05-26 Thread Pierfrancesco Caci
> "Dick" == Dick Dievendorff writes: Dick> There is a terminal tab on the K3 Utility that might help. Dick> Dick, K6KR I thought of that, but it would interfere with the logging program. Pf -- Pierfrancesco Caci, ik5pvx ___

[Elecraft] How to avoid Elecraft list email overload: Nabble and other web archives

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
Instead of receiving an email for every posting, you can stop emails and read and search the list via a convenient web based list archive. Nabble and mail-archive.com are two excellent Elecraft list archives accessed via our web page. See: http://www.elecraft.com/elist.html There is a 'no mail'

[Elecraft] K2/ 10 SSB/ATU

2011-05-26 Thread John Henderson N4NAB
Extra nice K2/10, s/n 3925. Has the finger dimple, SSB module and antenna tuner built by W3FPR, Don, and calibrated and aligned on 3/3/2011. Have manual, all Don's paper work. $780 shipped USPS East Coast. Will also trade in part on a K3. John N4NAB __

[Elecraft] Top Posting is the official standard for the Elecraft List

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
Top posting is the official standard for this list, and its especially important for those of us who also read our email on Android PDA phones, iPads etc. Scrolling though a long thread before getting to the reply text is impracticable on these devices and costs us a lot of time. Reading the res

[Elecraft] Elecraft email List Official Guidelines 2011

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
Elecraft eMail LIST GUIDELINES 2011 For those of you who are new to the list, (and for those of us who have rapidly failing memories.. ;-), here is a quick list of things to remember when posting to this list. Please save this for future reference. The most important thing to remember is that th

Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread Jim Dunstan
I agree with Ken Alexander VE3HLS. My mail program has a decent filtering system. Since this reflector has such diverse topics I have taken the trouble of making filters for those of special interest to me (conversely helping me avoid those that are not) which only takes a minute of

Re: [Elecraft] K3 text decode

2011-05-26 Thread Dick Dievendorff
There is a terminal tab on the K3 Utility that might help. Dick, K6KR On May 26, 2011, at 13:54, Pierfrancesco Caci wrote: > > Is there a way to have the decoded text persist longer on the display? > it returns too quickly to showing vfoB frequency. > > -- > Pierfrancesco Caci, ik5pvx > _

[Elecraft] K3 text decode

2011-05-26 Thread Pierfrancesco Caci
Is there a way to have the decoded text persist longer on the display? it returns too quickly to showing vfoB frequency. -- Pierfrancesco Caci, ik5pvx __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help

Re: [Elecraft] OT -RFI question

2011-05-26 Thread Jim Brown
On 5/26/2011 1:30 PM, Alan Bloom wrote: > TDMA (time division multiple access) cell phones share a frequency > channel by transmitting only in certain time slots. The power is pulsed > on and off even though the modulation mode may be constant-power. Yes. For at least one of the commonly used sta

Re: [Elecraft] K3 and the MRP40 CW Program.

2011-05-26 Thread Mike
Gavin - I'm not familiar with MRP 40, but I question that it decodes CW via an RS232 cable. Maybe an audio cable? SteppIR sells a "Y" cable that plugs into the PC and has 2 branches, one of which goes to the K3, and the other goes to the SteppIR controller. I have, and use it. They also have

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread John Huggins, kx4o
Keep in mind automotive power busses can and do have steady state voltages over 15V and even 16V when you include allowable ripple. Power busses are a terrible terrible place. Assuming the K3 designers' had in mind a car's electrical system, the choice of the BZW50-15 (in the QRP version) puts th

Re: [Elecraft] KX3 roofing filters

2011-05-26 Thread Guy Olinger K2AV
Ah. Extremely important point. NOT at all apparent from the KX3 page, especially when used to the one filter, one bandwidth paradigm. As it stands it reads like four available, but only one installable. On the web page, you may want to change... "Narrow roofing filter option with four bandwidth

Re: [Elecraft] OT -RFI question

2011-05-26 Thread Alan Bloom
TDMA (time division multiple access) cell phones share a frequency channel by transmitting only in certain time slots. The power is pulsed on and off even though the modulation mode may be constant-power. Al N1AL On Thu, 2011-05-26 at 15:19 -0500, Tony Estep wrote: > On Thu, May 26, 2011 at 12:

Re: [Elecraft] OT -RFI question

2011-05-26 Thread Tony Estep
On Thu, May 26, 2011 at 12:56 PM, Jim Brown wrote: > ...a cell phone used by the person wearing pacemaker -- worst case, it's a > 1 watt > PEP AM UHF, transmitter... This is interesting. I thought cellphones used an ADC to convert your audio, then some sort of FSK to transmit it. A web search tu

Re: [Elecraft] OT -RFI question

2011-05-26 Thread Jim Brown
On 5/26/2011 1:01 PM, Ed, W9EJB wrote: > It was the digital modulation modes that caused some > problems; all of which have been fixed for many years now. Note that what you're calling digital modulation is 100% amplitude modulation of a carrier by a series of pulses. For TDMA (time division mul

Re: [Elecraft] OT -RFI question

2011-05-26 Thread Ed, W9EJB
As noted by several others the pacemaker industry has indeed recognized the issues surrounding potential interference problems. Most probably remember the issues with microwave ovens - a problem solved over 30 years ago- but you still see the warning signs. In general, the typical ham does not

Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread Wes Stewart
As far as I'm concerned, what you see is what you get. If Yahoo's span filter doesn't do it, I have another one located between my ears. I don't see what all the fuss is. --- On Thu, 5/26/11, Ken Alexander wrote: > Hi Dave, > > The rules regarding posting aren't restricted entirely to > Ele

Re: [Elecraft] KX3 roofing filters

2011-05-26 Thread Alan Bloom
>From the new KX3 web page, the optional roofing filters: KXFL3 Roofing Filter Module (500/1500/2700/3800 Hz) The one option gives you all four roofing filters. Al N1AL On Thu, 2011-05-26 at 15:01 -0400, Joseph Trombino, Jr wrote: > Fellow Elecrafters: > > Does anyone have info on the KX3

Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread John Harper
Turn off the "send email" option and just read your topics-of-interest here: http://mailman.qth.net/pipermail/elecraft/2011-May/date.html John AE5X Radio: http://www.ae5x.com/blog __ Elecraft mailing list Home: http://mailman.qth.net/mai

Re: [Elecraft] KPA500 brick-on-key (CCS) ratings?

2011-05-26 Thread John Harper
>This is a continuing game played with tuners, which for a long time >have given ratings for stand-alone tuners based upon average voice AND Some tuners don't even stand up to their published ratings at CW duty cycles: http://www.ae5x.com/blog/qro/review-ldg-at600-autotuner/ Hopefully Elecraft

[Elecraft] KX3 Web Page and Data Sheet now up

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
See: http://www.elecraft.com/KX3/kx3.htm 73, Eric WA6HHQ -- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.

Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread Ken Alexander
Hi Dave, The rules regarding posting aren't restricted entirely to Elecraft products.  Frankly, there are too many smart people on the reflector to waste their talent on only one subject. That said, the Elecraft reflector is my e-mail software's most heavily filtered folder.  I think I current

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread FRED TOWNSEND
Something smells... is that your rig burning. Seriously, a battery will act as a voltage clamp unless it is open. Power supplies make good battery chargers but the converse is not true. Chargers do not contain filter caps so the voltage can spike, particularly if the battery is disconnecte

[Elecraft] KX3 roofing filters

2011-05-26 Thread Joseph Trombino, Jr
Fellow Elecrafters: Does anyone have info on the KX3 roofing filters, i.e. how many can the KX3 contain??? Bandwidths??? Looks like the ultimate portable rig to mesure hope they can keep up with the expected demand (grin). 73, Joe W2KJ

Re: [Elecraft] KX-3

2011-05-26 Thread Ed Muns
Bob, K3SRO, asked: > Will the KX-3 be available as a factory assembled rig (KX-3F) > or only kit form? Both. > What is the size, Somewhat larger than the KPA100 with heat sink and packaging. > cost Not yet fully costed out. > and weight of the > 100 amp? Somewhat more than the KPA100. Be

Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Ron D'Eau Claire
The transmitting station SAQ in Sweden regularly puts their big transmitter on the air at 17 kHz. The "transmitter" is an Alexanderson Alternator - a fascinating mechanical beast that did an excellent job generating pure CW back in the days when most stations were running spark. Google will turn up

Re: [Elecraft] OT - Why so much Off topic??

2011-05-26 Thread Dave Sharred
Guys I am new to this reflector; but am already considering quitting. Having just gotten a K3, I was hoping to see it as a source of useful info // advice, that I will undoubtedly need in the weeks ahead. Of course the reflector is for more than just the K3; and I can see the Euphoria surroundin

Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Tony Estep
On Thu, May 26, 2011 at 1:35 PM, Mike Cox wrote: > ...I also had a CK722...here's a picture... Col! I well remember those little blue gadgets, and the circuits I made to experiment with them, powered by big fat dry-cell batteries. Tony KT0NY

Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Mike Cox
Just for a bit of nostalgia, I also had a CK722 (back in the day) which I paid about $10 for. My 2N107's legs had previously fallen off and this was what I replaced it with. I still have it so here's a picture of one of the prettiest transistors ever made sitting on the screen of a current pr

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread Don Wilhelm
Dick, Yes, 16 volts is too high. There is a 15 volt zener diode right at the DC input of the K3 which should limit the voltage to the K3 at 15 volts (or until that zener diode is damaged). The charger may be dropping into the bulk charge output rather than staying in the trickle charge stat

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread Guy Olinger K2AV
This sounds like too small a battery for the given charger. Or too large a charger for the battery. On Thu, May 26, 2011 at 2:21 PM, wrote: > > If the spec sheet on the K3 say's 15V max, then the voltage is too high, no > matter where the voltage comes from... > > 73, > Tom > Amateur Radio Oper

[Elecraft] KX-3

2011-05-26 Thread Linda and Bob
Will the KX-3 be available as a factory assembled rig (KX-3F) or only kit form? What is the size, cost and weight of the 100 amp? Thanks. Bob K3SRO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] Battery Charger Voltage High?

2011-05-26 Thread RLVZ
It's measuring 15.7 volts in "Trickle Charge" on the K3 front panel display and on Battery Charger's digital readout. When it's charging in either the 10 or 15-amp mode then the voltage on both units goes to 16.0 volts. Dick- K9OM In a message dated 5/26/2011 1:08:48 P.M. Central D

Re: [Elecraft] KX1 Please need help with T/R thump

2011-05-26 Thread Don Wilhelm
Jerry, All that transistor has to do is remain in an open state between the collector and emitter during receive and provide a path to ground between collector and emitter during transmit. Any transistor that has a low saturation voltage will serve in that capacity - it is just a switching

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread n5ge
If the spec sheet on the K3 say's 15V max, then the voltage is too high, no matter where the voltage comes from... 73, Tom Amateur Radio Operator N5GE On Thu, 26 May 2011 13:58:34 EDT, r...@aol.com wrote: >Hi Guys, > >I'm operating from a portable location and using a 12-volt automobile >ba

Re: [Elecraft] K3EXREF Shipping Date?

2011-05-26 Thread n5ge
I have found that the best way to make enquiries about orders from Elecraft is to call or email Elecraft. 73, Tom Amateur Radio Operator N5GE On Thu, 26 May 2011 12:49:43 -0400, bruce.bef...@myfairpoint.net wrote: >I ordered one early last week (as part of another order) and was told by sales

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread Wes Stewart
A "trickle charge" should not be 16V. How are you measuring this? --- On Thu, 5/26/11, r...@aol.com wrote: > From: r...@aol.com > Subject: [Elecraft] Battery Charger Voltage High? > To: elecraft@mailman.qth.net > Date: Thursday, May 26, 2011, 11:58 AM > Hi Guys, > > I'm operating from a port

Re: [Elecraft] Battery Charger Voltage High?

2011-05-26 Thread Christoffer Knutsen
Hello Yes, you should be concerned. Battery chargers are different from PSUs as they can easily create a high voltage peak which will destroy any equipment hooked up to it. I highly recommend not to use the battery when it is on the charger. 73 from LA3CTA, Christoffer På Thu, 26 May 2011

[Elecraft] Battery Charger Voltage High?

2011-05-26 Thread RLVZ
Hi Guys, I'm operating from a portable location and using a 12-volt automobile battery with my K3. To keep the battery charged I'm using a Schumacher 15-Amp Charger/Maintainer that automatically switches to "Trickle Charge" when the battery is charged. My concern is that when the charger

Re: [Elecraft] OT -RFI question

2011-05-26 Thread Jim Brown
On 5/25/2011 2:01 PM, FRED TOWNSEND wrote: > Pacemakers are a lot like avionics relative to ham > radio. The working spectrums for pacemakers, avionics, and ham radios are > widely > separated by both frequency and function. The probability of their mutual > interaction is very small. Unfortunatel

Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Jim Dunstan
At 10:49 AM 5/26/2011 +0100, you wrote: > > With great delight over the years, he regularly welcomed visitors to his > > lab to listen to what he called his "whistlers," the eerie electrical > > warbling generated by lightning flashes in Canada's Arctic and that had Hi, Just a short line (off

Re: [Elecraft] KX1 Please need help with T/R thump

2011-05-26 Thread Jerry W7ANM
Don, I did extract the old Q7 without any damage or problems. I was looking at the spec sheet for the 2N3904 after getting your last suggestion and after ordering the 2N4124 from Elecraft. Do you think the 2n3904 is a superior replacement for the 2n4124? Any reason to suspect it would not work or

Re: [Elecraft] K3 antenna tuner question

2011-05-26 Thread Guy Olinger K2AV
Having a lot of water around means that the antenna impedance changes with the power level. I have seen this many times here on 160 with wet leaves very close to wires, and sometimes touching. I can watch the SWR vary under a steady 1500 watts, something not seen or far less obvious at 5 watts.

[Elecraft] KPA500 brick-on-key (CCS) ratings?

2011-05-26 Thread Guy Olinger K2AV
A PEP rating higher than CW is always going to be heat related. One should always inquire about the brick-on-key rating, e.g. the CCS or Continuous Commercial Service rating. For an Alpha 9500 and 8410 it is 1500 watts. For my 76CA it is 750 watts at the low voltage (CW) setting. For obvious re

Re: [Elecraft] K3EXREF Shipping Date?

2011-05-26 Thread Grant Youngman
My arrived a few days ago. So they are being shipped. Sent from my iPhone On May 26, 2011, at 11:49 AM, bruce.bef...@myfairpoint.net wrote: > I ordered one early last week (as part of another order) and was told by > sales they would not be ready for shipment until this week. I have not yet >

[Elecraft] K3 and the MRP40 CW Program.

2011-05-26 Thread Gavin Keegan
Can anyone help or advise please ? I would like to install the MRP 40 program on my shack computer and send and receive CW via an RS232 lead connected to my K3, but I already use an RS232 lead connected between the K3 and the controller for my SteppIR antenna. Can anyone advise how I can conn

Re: [Elecraft] K3EXREF Shipping Date?

2011-05-26 Thread bruce . beford
I ordered one early last week (as part of another order) and was told by sales they would not be ready for shipment until this week. I have not yet received the order, or a shipment notice. I'm sure it will be along, just wanted to mention what I was told about the external reference kit availab

[Elecraft] (no subject)

2011-05-26 Thread Russo, John
set authenticate ajax set delivery on end John Russo, CEM Utilities Manager SUNY at Buffalo (716) 829-2996 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mail

[Elecraft] OT: Software to draw electical block diagrams

2011-05-26 Thread Edward R. Cole
FYI: I have been using ExpressPCB free software which does create a gerber file if desired.. ExpressPCB makes small orders of pc boards. www.expresspcb.com 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432

[Elecraft] help request

2011-05-26 Thread Russo, John
set authenticate ajax help end __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please h

[Elecraft] help

2011-05-26 Thread Russo, John
help John Russo, CEM Utilities Manager SUNY at Buffalo (716) 829-2996 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list

Re: [Elecraft] This really bugs me [End of thread]

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
Folks - Let's end this thread. We've taken care of this with the customer and have also adjusted the web form. 73, Eric On 5/26/2011 9:32 AM, Edward R. Cole wrote: > First off, I can symphasize with Doug, as I face unnecessarily high > shipping all the time to Alaska. I'm not speaking about El

[Elecraft] This really bugs me

2011-05-26 Thread Edward R. Cole
First off, I can symphasize with Doug, as I face unnecessarily high shipping all the time to Alaska. I'm not speaking about Elecraft's shipping policy, specifically, as they seem to be fair. My XG3 cost me $8.64 to ship via USPS Priority Mail. But recently I bought a 50v PS on ebay that cost m

Re: [Elecraft] K3EXREF Shipping Date?

2011-05-26 Thread Eric Swartz - WA6HHQ, Elecraft
Its been shipping for a week or two. 73, Eric On 5/26/2011 9:03 AM, Jim Sheldon wrote: > The ship date on the external reference board ought to be getting close. > I've already ordered mine, just wondering how much longer till they are out > the door? > > Jim - W0EB >

Re: [Elecraft] Amp specs

2011-05-26 Thread n5ge
In addition, according to the user's manual, the key down time in CW at max power is ten minutes. I wouldn't want to do that to any of my VHF or UHF bricks, so it seems to me it's a pretty rugged amp. 73, Tom Amateur Radio Operator N5GE On Thu, 26 May 2011 08:09:25 -0700, Robert Friess wrote:

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